I take your point about Senna and Prost right at the start, but how about this for a trend?
92: Mansell won nine races to Patrese's one, which came long after the title had been sewn up.
93: Prost won seven races, with Damon Hill as a rookie winning three.
94: Schumacher wins with Benetton, he has several different teammates, all of whom have instructrions to follow behind
95: See 93, except Schumacher has one team-mate, Johnny Herbert, who won once after Schumacher crashed out
96: Hill is champion having to beat Villeneuve who, although a rookie, had equal status, wins four races and finishes runner up.
97: Villenueve wins title, team mate Frentzen wins one race in which Villeneuve fails to finish
98: Hakkinen wins title, team mate Coulthard wins one race in which Hakkinen fails to finish
99: Hakkinen wins title, team mate Coulthard wins two races, one on in which Hakkinen fails to finish, the other he finishes second.
Then from 2000 to 2004, it's Schumacher at Ferrari with favoured driver status in his contract.